baber/WOPTO huggingface dataset:
Patent GB-1529750-A (GB)
Title: Sulphur-containing polymers for membranes
IPC: B01D71/68
Filed: 1976-10-12
Abstract: 1529750 Modified phenoxy resins RHONE POULENC INDUSTRIES 12 Oct 1976 [15 Oct 1975 11 June 1976] 42335/76 Heading C3B [Also in Division B2] Phenoxy resins are reacted with a sultone or a haloalkylsulphonic acid salt to yield a polymer, with ion-exchange properties, comprising units and optionally units in which each of R 1  and R 2  are H or CH 3 , E is the divalent radical of a bisphenol HO-EOH, x and n are integers and M<SP>n+</SP> is a cation of valency n. Examples of reactants are propane-, butane- or pentane-sultone, chloro- or bromo-methylsulphonic, 2-chloro- or 2- bromo-ethylsulphonic, 3-chloro or 3-bromopropylsulphonic acid salts. Examples are Li, Mg, Ba, Na, ammonium or substituted ammonium salts. Reaction may take place in a solvent for the phenoxy resin, e.g. dimethylformamide, and a strong base. The ionexchange resins of the invention may be crosslinked by reaction with an epoxy resin. The resins may be used in ion-exchange membranes, e.g. a composite, screen reinforced or anisotropic membrane. The membranes may be treated with solutions containing ceric ions, e.g. as nitrate or sulphate.
Patent GB-1168757-A (GB)
Title: Process for the Manufacture of Polyvinyl Alcohol.
IPC: C08F8/12
Filed: 1968-09-09
Abstract: 1,168,757. Polyvinyl alcohol. FARBWERKE HOECHST A.G. 9 Sept., 1968 [9 Sept., 1967], No. 42802/68. Heading C3P. The continuous alcoholysis of polyvinyl acetate is effected by applying a homogeneous mixture of a solution of the polymer in methanol with an alkali methylate catalyst to an endless belt conveyer which is coated with a polyolefin to prevent the mixture sticking. This is of particular value where the alcoholysis is incomplete.
Patent GB-890202-A (GB)
Title: An improved arrangement for investigating the influence on light of a gaseous medium
IPC: G01N21/25
Filed: 1960-12-13
Abstract: 890,202. Transistor bi-stable circuits. SVENSKA AKTIEBOLAGET GASACCUMULATOR. Dec. 13, 1960 [Dec. 19, 1959], No. 42810/60. Class 40(6). [Also in Group XL(b)] In a frequency, divider comprising a crosscoupled bi-stable circuit a signal at the frequency to be divided is applied at 12. Alternate maxima of this signal trigger the circuit such that transistor 10 gives a pulse at half the signal frequency. The pulses are passed to an amplifier 11 which feeds a circuit element 3.
Patent GB-1089836-A (GB)
Title: A method of producing pressed chip bodies of low inflammability
IPC: C08L61/20
Filed: 1965-10-08
Abstract: Sheets and formed bodies of low inflammability are produced from comminuted organic fibrous materials (wood chips, shredded wood, flax shives, sisal fibres, or bagasse) by impregnating with an aqueous solution of a fire-retarding chemical and an aldehyde, mixing with a thermosetting binding agent, and then subjecting to heat and pressure.  The impregnation is carried out at a temperature of 50-70 DEG  C. with mono- or di-ammonium phosphate to which a nitrogenous compound having at least one reactive hydrogen atom, e.g. urea, dimethylol-urea, or triaminotriacin, or other fire-retarding chemical, e.g. dicyandiamide or pentaerythritol, is added.  The aldehyde is one containing a number of reactive atoms or groups, e.g. paraformaldehyde, trichloroacetaldehyde, or hexamethylene tetramine. The impregnated material is dried at a temperature of 130-160 DEG  C. and is then air-conditioned at 20 DEG  C. and 60% humidity to ensure a uniform moisture content of about 2%. The resin is a urea- or melamine-formaldehyde resin and is used in an amount of 18-20% of resin solids based on the dry weight of the fibrous material.
Patent GB-1365884-A (GB)
Title: Electric current collector arrangements
IPC: B60L5/38
Filed: 1970-09-08
Abstract: 1365884 Current collectors TRACKED HOVERCRAFT Ltd 3 Sept 1971 [8 Sept 1970] 42978/70 Heading B7L An electric current collector arrangement, adapted for co-operation with a conductor rail 12 having two opposed first surfaces (of arms 22 and 23) and a second surface (of yoke 26) therebetween forming a generally channelshaped concavity, comprise members 70 consisting of at least one opposed pair of the members 70 which are adapted for contacting respective ones of the first surfaces 22 and 23 under the action of biasing means, e.g. compression springs 76, which bias the members of the or each pair apart, at least one member 70 being electrically conductive and acted on by further biasing means, e.g. leaf springs 105, to to urge the conductive member(s) 70 into current transfer contact with the second surface 26. The members 70 may all be electrically conductive carbon shoes and may all contact both a first surface 22 or 23 and the second surface 26, as shown in Fig. 7. A shoe assembly 108 may be formed by two pairs of members 70 connected together, for co-operation in longitudinally spaced relationship with the associated conductor rail, by a connecting means such as a single backing plate, as in Fig. 2, which is universally jointed at 107 to the respective leaf spring 105. Two such shoe assemblies 108 may be connected for caliper-fashion co-operation with the conductor rail by a bifurcated yoke 90 which carries the springs 105 and is itself connected, via universal joints 101 and 103, to a vehicle body 100. The biasing means may comprise, instead of leaf springs 105, rigid members pivotally attached intermediate their lengths to the ends of respective arms 104 of the bifurcated yoke 90, the rigid members being acted on at their ends remote from the shoe assemblies 108 by biasing devices such as pneumatic rams (126), Fig. 8 (not shown), or a spring and linkage mechanism, Fig. 9 (not shown), to bias the shoe members 70 into contact with the second surface of the conductor rail. The current collector arrangement may be used in supplying power for propulsive and other purposes to a gas-cushion vehicle which may be propelled by a single-sided linear induction motor, Fig. 1 (not shown).
Patent GB-1276342-A (GB)
Title: Tuning means
IPC: H03G3/18
Filed: 1969-08-29
Abstract: 1276342 Transistor circuits; radio receiving circuits RCA CORPORATION 29 Aug 1969 [30 Aug 1968] 43058/69 Headings H3Q and H3T In a parallel resonant circuit, tuned over a band by means of a varactor diode, the bandwidth is maintained constant over the tuning range; the circuit comprising inductor 2P and capacitor 30, Fig. 2b, is chamfered by means of resistor 34 in series with inductor 32 which are so proportional that the parallel damping thrown on the tuned circuit is substantially proportional to the square of the frequency. The tuned circuit may be shunted by two such series connected inductors and resistances (Fig. 2a, not shown) the one resistance being that of the signal source and the other that of the load. As applied to a VHF television tuner, the aerial terminal 62, Fig. 1, is coupled to the emitter of a common-base transistor RF amplifier 84 via a tuning circuit comprising series inductors 64, 66 and parallel tuned circuit 68,70 in series with an I.F. rejection circuit 78, 80, 81. The collector, of transistor 84 is coupled to the base of a second transistor RF amplifier 86, in common emitter connection, via a high-frequency peaking circuit 98, 100, 102, 104. The collector of transistor 86 feeds into the emitter of transistor 172, acting as a frequency-changer in common base connection, via a circuit comprising seriesconnected inductors 122, 124, loading resistor 114 and the tuned circuit 126, 128. An I.F. output is taken from the collector of transistor 172 via transformer 180. Transistor 136 comprises the local oscillator, its base being earthed for R.F. by feed-through capacitor 166 and its emitter connected to a tap on inductor 138, which in conjunction with varactor diode 144 forms a tuned collector circuit. Local oscillations are fed to the emitter of mixer 172 via capacitor 168 and inductor 170.
Patent GB-1006712-A (GB)
Title: Improvements in or relating to tedders
IPC: B01J23/70
Filed: 1961-12-01
Abstract: 1,006,712. Haymaking machines. C. VAN DER LELY N.V. Dec. 1, 1961 [Dec. 2, 1960], No. 43123/61. Drawings to Specification. Heading A1F. The subject matter of the present Specification is included in Specification 1,006,711 but the claims relate to the framework of the tedder.
Patent GB-988869-A (GB)
Title: Heat-copying process
IPC: B41C/
Filed: 1961-12-04
Abstract: 988, 869. Developing heat sensitive materials. KALLE A.G. Dec. 4, 1961 [Dec. 10, 1960; Dec. 27, 1960; Jan. 7, 1961; March 27, 1961], No. 43263/61. Drawings to Specification. Heading G2C. A heat-sensitive resin layer bearing no electrostatic charge and having no photoconductor is image-wise exposed to heat and the latest image so produced is developed by treating the resin with a powder or paste rendering the image visible. Specified resins are polyamides,polyamides containing alkoxymethyl substituent groups on the carbonamide nitrogen atoms, polyvinyl compounds, polyesters, polyolefines, a maleate, phenolic or ketone resin, shellac and colophony. Specified powders and pastes are those containing inorganic pigments, organic dyestuffs or glass powder. In the examples, the resin is coated on a support and exposed through a master and the resin bearing the latest image is passed between two rollers, one of which carries the developing paste. For copying negative originals, the resin is covered with a cellulose acetate film bearing a silver image and exposed through the cellulose acetate film. The radiation which passes through the film is absorbed by the silver image giving a positive latest image on the resin.
Patent GB-1193994-A (GB)
Title: Improvements in or relating to a Counting Device
Inventor: TUNE VINCENT JOHN
IPC: G06M11/00
Filed: 1967-07-27
Abstract: 1,193,994. Counters. V. J. TUNE. 21 Oct., 1968 [27 July, 1967], No. 34575/67. Heading G4D. A device for dispensing a number of tablets comprises a perforated plate 29, with holes 32 into which the tablets can be fed, overlying a draw-plate 21. The plate 29 is selected according to the size of tablet to be dispersed and a number of tablets are swept over the plate, any surplus falling into gaps 27, 31 to be returned through the bottom of the device to stock. The draw-plate 21 is then withdrawn to release the. appropriate number of rows of tablets to fall into the bottom of the device and thereafter to be dispensed.
Patent GB-1517699-A (GB)
Title: Actuators
IPC: F16D65/14
Filed: 1974-10-08
Abstract: 1517699 Spring actuators GIRLING Ltd 24 Sept 1975 [8 Oct 1974 5 Nov 1974] 43612/74 and 47854/74 Heading F1D A brake actuating rod or member 11 is drawn in tension, into a cylinder 1 of a spring applied/ fluid-pressure released actuator by a spring 7 to apply a brake 14, an adjusting nut 12 being provided on the rod 11 remote from the brake. In Fig. 1 the piston 3 is secured to a sleeve 4 with a flange 6 to limit movement of the rod 11 rightwards when the chamber 9 is pressurized with air, and the end wall 5 is held in the cylinder 2 by bolts 19 extending through slots 21 of the cylinder so that the bolts 19 engage abutments 22 to prevent their rotation unless the spring load is being supported. The end-wall 5 may be modified to support an annular hydraulic brake slave cylinder around the rod 11, Fig. 6 (not shown). To facilitate safe dismantling of a diaphragm actuator, Fig. 7, the sleeve 4 has a stop member 36 screwed to its end which is slidable on a further sleeve 34. The sleeve 34 has a circlip 37 engageable by the stop member and is secured to an end wall 33 of the actuator by a unit 35 which is removable to expand the spring 7 gradually. In a further modification of Fig. 1, Fig. 8 (not shown), a second sleeve (41) is interposed between the rod 11 and sleeve 4 allowing dismantling without upsetting the adjustment of the nut 12.
Patent GB-1207844-A (GB)
Title: Display device
Inventor: NELSON WILLIAM STANLEY
IPC: G09F15/00
Filed: 1967-09-25
Abstract: 1,207,844. Collapsible signs. FORDS OF BRISTOL Ltd. 14 Nov., 1968 [25 Sept., 1967], No. 43625/67. Heading G5C. Rigid supports 10 are surmounted by hollow banner sections 2 telescopically interconnected by an intermediate member 18. As described, members 2, 18 are of cardboard and carry advertising matter. Supports 10 are formed from sections 12 interconnected by spigots (16), Fig. 2 (not shown); their top ends have spigots (9) engaging holes (8) in the underside of banner sections 2. There are a plurality of such holes (8), and thus the longitudinal extension of the sign is adjustable. The poles 10 may have wire feet or be provided with self-adhesive pads. The sign may span a supermarket aisle.
Patent GB-1192927-A (GB)
Title: Improvements relating to Apparatus for the Production of Electric Heating Elements
Inventor: DAVIE PETER
IPC: F24D13/02
Filed: 1966-10-03
Abstract: 1,192,927. Sawing. P. DAVIE. 2 Oct., 1967 [3 Oct., 1966], No. 44113/66. Heading B5L. [Also in Division H5] A space heating panel for use in walls and ceilings is made by sticking a continuous layer of metal foil to a rectangular board made of pulp, cellulose fibres or mineral fibres, and forming a meander pattern in the foil by cutting through the foil and into the board. The board to which the foil is bonded is fed to a cutting apparatus and is initially raised by leaf springs 25 to be clear of the set 15 of coaxial cutters. When the leading edge of the panel is beneath roller 14, the panel is d pressed and a series of parallel cuts is formed m the panel, the cuts terminating short of the leading edge. When the leading edge of the panel reaches the set 16 of cutters a plurality of cuts is formed between the first cuts but these cuts are prevented from extending to the trailing edge of the panel by further blade springs 25 which raise the panel when it leaves roller 14. The meander pattern is thus formed in one pass through the cutting apparatus. The two sets of cutters may be adjustable relative to the panel.
Patent GB-936554-A (GB)
Title: Improvements in or relating to transplanting devices for use in agriculture and horticulture
IPC: A01G9/10
Filed: 1961-12-08
Abstract: 936,554. Reinforced paper. TAKARA YOSHI CO. Ltd. Dec. 8, 1961 [Jan. 7, 1961], No. 44116/61. Class 96. [Also in Group I] A device for use in transplanting plants comprises a network of threads 1, 2 applied to a sheet 3 of paper or other material penetrable by the plant roots, the sheet 3 being folded along the threads 1 to form grooves in which the seeds or seedlings are planted.
Patent GB-946690-A (GB)
Title: Means for placing sleeves over containers having closure flaps
IPC: B65B61/20
Filed: 1960-12-24
Abstract: 946,690. Placing sleeves over cartons and other containers. J. PERRIAN. March 13, 1962 [Dec. 24, 1960], No. 44353/60. Heading B8C. Flaps 8c, 9c hinged to the wall 10 of a carton are held closed by the jig illustrated while a sleeve 16 of cardboard or similar material is slid over the carton to hold all the hinged closure flaps 8a, 8c, 9a, 9c closed. The jig includes an upper member 5 biased downwardly about its hinge 4 to the base 1 by springs 14. The member 5 and the base 1 engage the carton through wedge-shaped members 6, 3 shaped to guide the sleeve 16 between the carton and the wedges. According to the Provisional Specification provision may be made for sleeving several boxes simultaneously. This subject-matter does not appear in the Complete Specification.
Patent GB-1514025-A (GB)
Title: Dual-material self-bonding lip seal and process for making same
IPC: F16J15/32
Filed: 1976-10-26
Abstract: 1514025 Seals CATERPILLAR TRACTOR CO 26 Oct 1976 [17 March 1976] 44492/76 Heading F2B [Also in Division B5] An annular sealing ring comprises a rigid support section 12 of polycarbonate material having a high elastic modulus and a sealing section 14 of polyurethane elastomer, the two sections being directly bonded together without the use of adhesive. The support section 12 may be produced from phosgene and bisphenol A and have the structure It may contain a filling material of glass fibres, carbon black, graphite fibres, glass beads, mica, or polyarimid fibres.
Patent GB-1047920-A (GB)
Title: Production of 3-cyano-3,5,5-trimethyl-1-cyclohexanone
IPC: C07C49/737
Filed: 1965-10-21
Abstract: The invention relates to a process for the production of 3-cyano-3,5,5-trimethyl-1-cyclo-hexanone comprising the step of reacting isophorone and hydrocyanic acid at a temperature between approximately 80 DEG  and 230 DEG  C. in the presence of an alkaline catalyst present in an amount of approximately 10-1 to 10-3% by weight of the reaction mixture.  The process may be carried out in a batch or continuous manner and in an example of the latter an apparatus and flow sheet are described.
Patent GB-1397969-A (GB)
Title: Assembling nuclear reactor fuel elements
IPC: G21C21/00
Filed: 1972-09-28
Abstract: 1397969 Fuel elements BABCOCK & WILCOX CO 28 Sept 1972 [28 Oct 1971] 44848/72 Heading G6C In a fuel element assembly technique that facilitates the insertion of a fuel rod into a cell which is formed by a resilient grid structure, a cam is initially introduced into the cell and is then rotated to deflect the grid surfaces that comprise the cell walls. This deflection prevents a leaf-spring mounted detent formed in the grid surface from extending into the path of the fuel rod. A key with a dimension that generally matches the deflected grid is inserted into the cell in order to engage the temporarily bowed grid surface. The inserted cam is rotated back to the initial orientation relative to the cell configuration and is withdrawn from the grid structure. The deflecting key lodged against the bowed grid surface, however, sustains the deflection in order to enable the fuel rod to be inserted into the cell without being abraded by the detent. After fuel rod insertion, the matching dimension portion of the deflecting key is disengaged from the grid surface and the key is withdrawn from the cell to release the leaf spring and allow the detent to clutch the fuel rod.
Patent GB-1532818-A (GB)
Title: Manually operated trigger actuated diaphragm pump dispenser
IPC: F04B43/02
Filed: 1976-10-28
Abstract: 1532818 Reciprocating pumps AFA CORP 28 Oct 1976 [29 Oct 1975] 44948/76 Heading F1A A trigger-actuated, container-mounted, diaphragm pump comprises a diaphragm 17 defining a pumping chamber 20 communicating with a container 11  via dip tube 27 and with an outlet nozzle 29. Diaphragm 17 is supported by a member 18 having an aperture through which member 16, connected to trigger 14, passes to deflect diaphragm 17. As shown, flow to and from chamber 20 is controlled by a ball inlet valve 26 and an outlet check-valve constituted by part of a diaphragm 17 flexibly cooperating with the upper wall of chamber 20, Fig. 2 (not shown). In Fig. 3 (not shown), flow to and from the chamber is controlled by a slide valve (33) with an outlet passage (35) of larger crosssectional area than its inlet passage (34), delivery pressure moving the valve against a spring (51) from its intake position to its discharge position. In Fig. 4 (not shown), the outlet valve is located in the outlet nozzle and comprises a slidable member (49) movable by the delivery pressure to open an outlet passage (52) and formed with a swirlproducing groove (55). The container is vented via passages 32b, 32a and flexible washer 31.
Patent GB-1302457-A (GB)
IPC: B66C1/34
Filed: 1970-09-22
Abstract: 1302457 Hooks; travelling clocks DRESSER INDUSTRIES 22 Sept 1970 45058/70 Headings E2A and E1F A hook assembly comprises a hook 21 and an adaptor 20 for attaching the hook to a travelling block the hook being pivotally attached to the adaptor, an L-shaped arm 51 being pivotally connected to the adaptor and having holes 62, 63, a ring 25 having peripheral slots being rigidly attached to the hook, a spring-loaded locking-rod 58 slidably attached to the adaptor being successively insertable and removable from the holes 62, 63 during movement of the arm 51, a spring 55 for causing the arm to engage a slot in the ring 25 after the locking rod 58 is removed from the hole 62 and means for disengaging the arm from the slot in the ring. After the locking rod is removed from the hole 63 by applying a downward force to the free end portion of the arm 51. The rod 58 is secured to a guide 59 urged to move in a slot in the adaptor by a spring 61 either to engage the hole 63 in the arm 51 when the hook is stationary or the hole 62 when the hook is free to swivel. By pulling downwardly on a cable passing through a slot 65 in the arm 51 the rod 58 is removed from the hole by depressing an enlarged, bifurcated end of the guide 59 projecting at each side of the hole, the arm 51 pivots and disengages the slot in the ring, freeing the hook and the rod 58 engages in the hole 62 to retain the arm disengaged. To arrest the hook again the arm 51 is again pulled downwardly by a cable passing through an eye thereof to disengage the rod 58 from the hole 62 to allow the arm to pivot under spring action so that an edge engages one of the slots in the ring and the rod reengages the hole 63 holding the hook stationary.
Patent GB-1360190-A (GB)
Title: Lifting beam
IPC: B66C1/10
Filed: 1971-06-14
Abstract: 1360190 Self-levelling beams; lifting arrangements HARLAND & WOLFF Ltd 14 June 1971 [15 March 1970] 45413/69 Headings B8H and B8B A lifting beam which is suspended from a crane (not shown) and which is able to regain its original orientation relative to the crane after tilting when loaded comprises a beam proper 11 and a trolley 19 which is attached to the crane by means of yoke arms 16, 17 which are pivotally mounted on a yoke 13 which is pivotally connected to a single suspension member 14 of a crane hoist block 12, the beam proper 11 being movable relative to the trolley 19 by engagement with trolley wheels 20, 21 under the action of a motor 27 which drives a worm 23 engaged in a nut 26 fixed on the trolley 19. When the beam 11  tilts relative to its original orientation a sensing device 29 (e.g. a spirit level, pendulum or electric motor) actuates the motor 27 and thus the worm 23 to move the beam proper 11 relative to the trolley 19. The load (not shown) is slung from the beam proper 11 by means of a load compensating means comprising a rope 31 which extends around pulley blocks 35 and sheaves 34 and also around a drum 36 which is spring biased out of engagement with a braking element 38 when the pulley blocks 35 are unloaded. A turning mechanism 15 is connected to the member 14 to enable the yoke 13 and thus the beam to turn about a vertical axis of suspension relative to the hoist block 12. Thrust fans 51, 52 are mounted at the ends of the beam proper 11 to turn it about the said vertical axis.
Patent GB-1246637-A (GB)
Title: A line output stage for a colour television receiver
IPC: H04N3/18
Filed: 1968-09-25
Abstract: 1,246,637. Line deflection circuits. BLAUPUNKT-WERKE G.m.b.H. 25 Sept., 1968 [26 Sept., 1967], No. 45468/68. Heading H3P. [Also in Division H2] In a line output stage of a television receiver, over-voltage protection is provided by a glow discharge tube 24 arranged to rectify flyback pulses in excess of a predetermined amplitude and to feed back a control signal to reverse bias the line output stage under such circumstances. As shown, the pentode 1 is connected to deflection coil terminals 7, 9 via a transformer 3 including a booster circuit 5, 29 and a suppressor inductor 11. The flyback pulses are rectified by a voltage multiplier 28 to provide E.H.T. for a colour cathode-ray tube. A known voltage regulator utilizes a V.D.R. 17 and provides an output adjustable at 18. In the event of excess voltage being generated, the flyback pulses will break down the glow discharge tube 24 so as to provide a negative voltage which is passed via diode 25 and used to cut off the pentode 1. The internal resistance of the protection circuit is arranged to be lower than that of the voltage regulator.